1. a republic in central Asia, south of Russia, that extends east from the Caspian Sea to the Altai Mountains and China; population 17,600,000 (estimated 2015); capital, Astana; languages, Kazakh (official) and Russian.

a republic in central Asia, on the southern border of Russia, extending from the Caspian Sea eastwards to the Altai Mountains and China; population 17,600,000 (estimated 2015); languages, Kazakh (official), Russian; capital, Astana.